OXYGEN BOMB CALORIMETER

1930 ◽  
Vol 3 (5) ◽  
pp. 464-472 ◽  
Author(s):  
Edgar Stansfield ◽  
John W. Sutherland

This paper describes a stainless steel Scholes bomb and the modification found necessary to reduce the time for temperature equilibrium, a new calorimeter equipment and a simplified method for correcting Beckmann thermometer readings. Notes on a vacuum cup calorimeter are also included.

2015 ◽  
Vol 651-653 ◽  
pp. 1545-1550 ◽  
Author(s):  
Alfredo Hernández ◽  
J. Federico Chávez ◽  
Raquel E. Hernández

A rheocasting prototype for the semi-solid processing of Al-Si alloys was designed and assembled at laboratory scale, this is the first attempt for the development of S2P equipment in Mexico. This work describes the simplified method of mechanical stirring and the calculation of the theoretical parameters for the operation of the experimental device in order to provide shear rate into the slurry by a stainless steel impeller inside a crucible made of hot work steel. Moreover, a vertical pressure die-rheocasting system it is applied with the semi-solid alloy flowing counter the position of the injector during the displacement of the crucible in order to fill the mold. New design is applied in this rheocasting equipment.The semi-solid state with thixotropic behavior is produced in the stirred AlSi7Mg alloy; this condition allows the non-dendritic morphology because the intensively stirring at the beginning of the solidification produces the trimming of dendrites, growing so the primary solid (α) in globular shape surrounded by eutectic microstructure. Preliminary microstructural characterization was performed.


2013 ◽  
Vol 333-335 ◽  
pp. 1884-1888
Author(s):  
Qi Zeng

Research has been done on the heating value of ethanol, biodiesel and diesel, and their heating values were measured with oxygen bomb calorimeter, by means of GB/T384-81 national standard. All errors are limited in the range of national standard. Research and calculation results indicate that the heating value of ethanol-biodiesel-diesel decreases with the increasing ratio of ethanol and biodiesel. The calculation value through experimental formula of low heating value is higher than that of experimental measuring. The higher percentage is in the range of 5.7%~7.6%.


1983 ◽  
Vol 10 (3) ◽  
pp. 177-187 ◽  
Author(s):  
D.R. Kirklin ◽  
E.S. Domalski
Keyword(s):  

2000 ◽  
Vol 8 (1) ◽  
pp. 76-77
Author(s):  
Ufuk Özergin ◽  
Kadir Durgut ◽  
Cevat Özpinar ◽  
Niyazi Görmüş ◽  
Güven Sadi Sunam ◽  
...  

A simplified method of reinforced sternal closure is described. Figure-of-8-shaped sutures of no. 5 stainless steel wire are inserted with 2 Sterna-Bands between them. The advantages of this technique are simplicity, effectiveness, and speed.


2012 ◽  
Vol 111 (1) ◽  
pp. 943-949 ◽  
Author(s):  
Xin Yu ◽  
Cai-Rong Zhou ◽  
Xue-Wei Han ◽  
Guo-Peng Li

2012 ◽  
Vol 17 ◽  
pp. 208-213 ◽  
Author(s):  
Jianfeng Shen ◽  
Shuguang Zhu ◽  
Xinzhi Liu ◽  
Houlei Zhang ◽  
Junjie Tan

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